Adata set has 10,000 records and 30 predictor variables, with 5% of the values missing for the variables. the missing values are spread randomly and independently throughout the data set. the analyst uses a predictive model that automatically drops any record that has even a single missing values on any of the variables. how many records would be dropped from the analysis? group of answer choices

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.